| Expression | x=4 | x=1/9 |
| x+√x | 4+√4 = 4+2 = 6 | 1/9+√(1/9) = 1/9+1/3 = 1/9+3/9 = 4/9 |
| x-√x | 4-√4 = 4-2 = 2 | 1/9-√(1/9) = 1/9-1/3 = 1/9-3/9 = -2/9 |
| x√x | 4√4 = 4*2 = 8 | (1/9)√(1/9) = (1/9)*(1/3) = 1/27 |
| √x/x | √4/4 = 2/4 = 1/2 | √(1/9)/(1/9) = (1/3)/(1/9) = (1/3)*9 = 3 |
| x/√x | 4/√4 = 4/2 = 2 | (1/9)/√(1/9) = (1/9)/(1/3) = (1/9)*3 = 1/3 |